The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 23, 2013
Filed:
Nov. 02, 2010
Toshiyuki Watanabe, Shibuya-ku, JP;
Masafumi Matsushita, Yokohama, JP;
Toshitaka Sakurai, Yokohama, JP;
Kazuya Sato, Yokohama, JP;
Yoko Matsushita, Yokohama, JP;
Takayoshi Misaki, Hiratsuka, JP;
Setsuko Shindo, Kawasaki, JP;
Ayumi Shindo, Yokohama, JP;
Yumiko Kubota, Kamakura, JP;
Akiko Matsushita, Yokohama, JP;
Kunio Saito, Yokohama, JP;
Takumi Shitara, Yokohama, JP;
Futoshi Yanagino, Kawasaki, JP;
Takashi Yoshida, Kawasaki, JP;
Takashi Mizushima, Saitama, JP;
Osamu Matsuzono, Saitama, JP;
Kazuaki Sato, Nagoya, JP;
Kouki Shimizu, Adachi-ku, JP;
Toshiyuki Watanabe, Shibuya-ku, JP;
Masafumi Matsushita, Yokohama, JP;
Toshitaka Sakurai, Yokohama, JP;
Kazuya Sato, Yokohama, JP;
Yoko Matsushita, Yokohama, JP;
Takayoshi Misaki, Hiratsuka, JP;
Setsuko Shindo, Kawasaki, JP;
Ayumi Shindo, Yokohama, JP;
Yumiko Kubota, Kamakura, JP;
Akiko Matsushita, Yokohama, JP;
Kunio Saito, Yokohama, JP;
Takumi Shitara, Yokohama, JP;
Futoshi Yanagino, Kawasaki, JP;
Takashi Yoshida, Kawasaki, JP;
Takashi Mizushima, Saitama, JP;
Osamu Matsuzono, Saitama, JP;
Kazuaki Sato, Nagoya, JP;
Kouki Shimizu, Adachi-ku, JP;
Sumikin Bussan Corporation, Osaka, JP;
Abstract
A duplex eutectic silicon alloy including 30-70 weight % silicon, 10-45 weight % nitrogen, 1-40 weight % aluminum, and 1-40 weight % oxygen has a eutectic structure comprising a β'-sialon phase and an ο′-sialon phase. The alloy is produced by controlling cooling at a rate of 50° C. or less per minute in combustion synthesis. A ductile sintered product capable of replacing steel in various applications can be produced by placing a compact composed of a powder of the alloy in a sintering furnace which can supply a heat quantity at least ten times the heat capacity of the compact; and sintering the compact at a pressure at least as great as atmospheric pressure, within a nitrogen atmosphere in which the silicon gas mole fraction is 10% or more, and at a temperature within the range from 1400° C. to 1700° C.